[OpenSIPS-Users] drouting module with append_branch() and q-values
thrillerbee
thrillerbee at gmail.com
Thu Mar 31 18:16:53 CEST 2011
I was able to manipulate $ru as set by do_routing() to get the behavior I'm
looking for. It's not very clean, but it's functional.
On Thu, Mar 31, 2011 at 9:00 AM, thrillerbee <thrillerbee at gmail.com> wrote:
> bump.
>
>
> On Tue, Mar 29, 2011 at 11:27 AM, thrillerbee <thrillerbee at gmail.com>wrote:
>
>> Hopefully my last question:
>>
>> Using append_branch() and $branch allows me to add all destinations as
>> branches with q-values. However, I am unable to remove/edit the initial
>> entry in $ds as set by do_routing():
>>
>> Contact: *sip:15552345678 at 1.1.1.1, *<sip:15552345678 at 1.1.1.1>;q=1, <
>> sip:2215552345678 at 2.2.2.2>;q=0.9, <sip:5552345678 at 3.3.3.3>;q=0.85, <
>> sip:15552345678 at 5.5.5.5>;q=0.8, <sip:sip:4415552345678 at 4.4.4.4>;q=0.75
>>
>> Is there a way to prevent do_routing from adding that entry and/or remove
>> it after it has been added? OR is there a way to add a q-value to that
>> instance?
>>
>> Thanks,
>> Ryan
>>
>> On Tue, Mar 29, 2011 at 10:51 AM, thrillerbee <thrillerbee at gmail.com>wrote:
>>
>>> Bogdan,
>>>
>>> Nevermind on that issue; I neglected to notice that I had to create the
>>> branch with append_branch() before setting anything.
>>>
>>> Thanks for the help.
>>> Ryan
>>>
>>>
>>> On Tue, Mar 29, 2011 at 9:52 AM, thrillerbee <thrillerbee at gmail.com>wrote:
>>>
>>>> Bogdan,
>>>>
>>>> When I configure:
>>>> $(branch(uri)[0]) = $ru;
>>>> $(branch(q)[0]) = 100;
>>>> xlog("L_INFO","branch 0 = $(branch(uri)[0]) with q-value
>>>> $(branch(q)[0])\n");
>>>>
>>>> I get this debug:
>>>> ERROR:core:pv_set_branch_fields: SCRIPT BUG - inexisting branch
>>>> assigment [0/0]
>>>> ERROR:core:do_assign: setting PV failed
>>>> ERROR:core:do_assign: error at line: 163
>>>> ERROR:core:pv_set_branch_fields: SCRIPT BUG - inexisting branch
>>>> assigment [0/0]
>>>> ERROR:core:do_assign: setting PV failed
>>>> ERROR:core:do_assign: error at line: 164
>>>> branch 0 = <null> with q-value <null>
>>>>
>>>> Thanks,
>>>> Ryan
>>>>
>>>>
>>>> On Tue, Mar 29, 2011 at 8:19 AM, Bogdan-Andrei Iancu <
>>>> bogdan at opensips.org> wrote:
>>>>
>>>>> Hi,
>>>>>
>>>>> Another tricks:
>>>>>
>>>>> 1) you can read the pending destinations directly from AVPs, without
>>>>> calling the "use_next_gw()" function. See:
>>>>>
>>>>> http://www.opensips.org/html/docs/modules/1.6.x/drouting.html#id293166
>>>>>
>>>>> 2) as append_branch() does not accept variables as params, use the
>>>>> "$branch" variable to write into:
>>>>> http://www.opensips.org/Resources/DocsCoreVar16#toc15
>>>>> like:
>>>>> $branch = $var(x) ; #add a new SIP URI as extra branch
>>>>> $(branch(q)[-1]) = 10 ; # set Q val for the last added brach
>>>>>
>>>>>
>>>>> Regards,
>>>>> Bogdan
>>>>>
>>>>>
>>>>> Anca Vamanu wrote:
>>>>>
>>>>>> Hi thrillerbe,
>>>>>>
>>>>>> I think that if you only want to build the list of selected
>>>>>> destinations, you can just call use_next_gw and add the uri in RURI to a
>>>>>> destination string ( because use_next_gw sets the RURI to the destination-
>>>>>> http://www.opensips.org/html/docs/modules/devel/drouting.html#id251519
>>>>>> ).
>>>>>> It would be something like this:
>>>>>>
>>>>>> if (do_routing("1","2")) { if ($avp(s:dr_rules_attrs) == "2")
>>>>>> {
>>>>>> xlog("L_INFO","After 1, ds is $ru\n"); $var(x) = 2;
>>>>>> $var(ds) = $ru;
>>>>>>
>>>>>> while (use_next_gw()) { $var(ds) =
>>>>>> $var(ds) + "," + $ru;
>>>>>> xlog("L_INFO","After $var(x), ds is $var(ds)\n");
>>>>>> $var(x) = $var(x) + 1; } } xlog("L_INFO","Destination
>>>>>> set is $var(ds)\n"); }
>>>>>>
>>>>>>
>>>>>> Regards,
>>>>>> --
>>>>>> Anca Vamanu
>>>>>> OpenSIPS Developer
>>>>>>
>>>>>>
>>>>>> On 03/29/2011 01:00 AM, thrillerbee wrote:
>>>>>>
>>>>>>> I'm trying to get OpenSIPS to act as a REDIRECT server and have run
>>>>>>> into a couple issues. I'm using the drouting module to do lookups.
>>>>>>> Essentially, a dialed number could have potentially several routes, I want
>>>>>>> to return a 300 with these routes in the Contact header. Please tell me if
>>>>>>> this is foolish and/or there are better methods.
>>>>>>>
>>>>>>> I'm running release version 1.6.4-2-notls.
>>>>>>>
>>>>>>> With that, I've configured the following in my script:
>>>>>>> if (do_routing("1","2")) { if ($avp(s:dr_rules_attrs) ==
>>>>>>> "2")
>>>>>>> {
>>>>>>> xlog("L_INFO","After 1, ds is $ds\n"); $var(x) = 2;
>>>>>>> while (use_next_gw()) { append_branch();
>>>>>>> xlog("L_INFO","After $var(x), ds is $ds\n");
>>>>>>> $var(x) = $var(x) + 1; } } xlog("L_INFO","Destination set
>>>>>>> is $ds\n"); }
>>>>>>>
>>>>>>> My relevant debug output is:
>>>>>>> After 1, ds is Contact: sip:15552345678 at 1.1.1.1 <mailto:
>>>>>>> sip%3A15552345678 at 1.1.1.1> After 2, ds is Contact: *
>>>>>>> sip:2215552345678 at 2.2.2.2 <mailto:sip%3A2215552345678 at 2.2.2.2>,
>>>>>>> sip:2215552345678 at 2.2.2.2 <mailto:sip%3A2215552345678 at 2.2.2.2>*
>>>>>>> After 3, ds is Contact: *sip:5552345678 at 3.3.3.3 <mailto:
>>>>>>> sip%3A5552345678 at 3.3.3.3>*, sip:2215552345678 at 2.2.2.2 <mailto:
>>>>>>> sip%3A2215552345678 at 2.2.2.2>, *sip:5552345678 at 3.3.3.3 <mailto:
>>>>>>> sip%3A5552345678 at 3.3.3.3>* After 4, ds is Contact: *
>>>>>>> sip:15552345678 at 5.5.5.5 <mailto:sip%3A15552345678 at 5.5.5.5>*,
>>>>>>> sip:2215552345678 at 2.2.2.2 <mailto:sip%3A2215552345678 at 2.2.2.2>,
>>>>>>> sip:5552345678 at 3.3.3.3 <mailto:sip%3A5552345678 at 3.3.3.3>, *
>>>>>>> sip:15552345678 at 5.5.5.5 <mailto:sip%3A15552345678 at 5.5.5.5>* After 5,
>>>>>>> ds is Contact: *sip:4415552345678 at 4.4.4.4 <mailto:
>>>>>>> sip%3A4415552345678 at 4.4.4.4>*, sip:2215552345678 at 2.2.2.2 <mailto:
>>>>>>> sip%3A2215552345678 at 2.2.2.2>, sip:5552345678 at 3.3.3.3 <mailto:
>>>>>>> sip%3A5552345678 at 3.3.3.3>, sip:15552345678 at 5.5.5.5 <mailto:
>>>>>>> sip%3A15552345678 at 5.5.5.5>, *sip:4415552345678 at 4.4.4.4 <mailto:
>>>>>>> sip%3A4415552345678 at 4.4.4.4>*
>>>>>>> It seems that append_branch() deletes the first entry in the
>>>>>>> destination set before adding the current RURI to the beginning and end. Is
>>>>>>> there an easier or more predictable way to write to the destination set?
>>>>>>>
>>>>>>> Also, it seems the append_branch() function will not take variables
>>>>>>> or avps as parameters. Is there a known way of setting different q-values as
>>>>>>> a destination set is generated? The below obviously doesn't work but should
>>>>>>> explain what I'm looking for:
>>>>>>>
>>>>>>> var(q) = 90;
>>>>>>> while (use_next_branch())
>>>>>>> {
>>>>>>> append_branch("$ru","$var(q)");
>>>>>>> $var(q) = $var(q) - 10;
>>>>>>> }
>>>>>>>
>>>>>>> Thanks,
>>>>>>> Ryan
>>>>>>>
>>>>>>> ------------------------------------------------------------------------
>>>>>>
>>>>>> _______________________________________________
>>>>>> Users mailing list
>>>>>> Users at lists.opensips.org
>>>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Bogdan-Andrei Iancu
>>>>> OpenSIPS eBootcamp - 2nd of May 2011
>>>>> OpenSIPS solutions and "know-how"
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Users mailing list
>>>>> Users at lists.opensips.org
>>>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>>>>
>>>>
>>>>
>>>
>>
>
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